Wrench



Patented Sept. 7, 1926.

P T NT or icE.

rnwmr. K IMBALL' OF nos nnennnsmnmronnm.

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Application filed Ju1y.30, 1225. Serial No. 47,044.

My invention'relat'es'to adjustable open end wrenches and construct a wrench that. is simple in construction; second, to provide an open end wrench wherein the jaws may be easily and quickly adjusted; and third, to construct a wrench that requires a minimum amount of clearance space when turning a nut or similar parts.

Further objects are to construct a wrench with connected adjustable jaws and a sliding key.

Other objects and advantages will be made manifest in the. following specification of an embodiment of the invention illustrated in the accompanying drawings.

Iattain these objects by the construction illustrated in the accompanying drawings, in which. I

Figure 1 represents a side view of my wrench with the jaws in an open position.

Figure 2 is 'a fragmentary plan view of Figure 1.

Figure ure 1'.

Figure 1 is a side view of the adjustable jaw of said wrench. v

Figure 5 is a side view of the handle-jaw of said wrench.

.Figure 6 is a sectional view taken on line 66 of Figure 1.

Figure 7 is ,a side view of the sliding key 3 is a modified plan view of Figin said wrench.

Figure 8 is a bottom plan view of Figure 7.

My wrench includesa handle 1 provided with a stationary jaw 4,.and a movable jaw '5 having a shank 2, said shank being slidably mounted on said handle and having a slot or keyway 10 therein, and the jaws 4 and 5 being disposed at an angleto said handle and in alignment with one another by means of the slides 7 8 and 9. The slides 7 8 are formed between the members 1 and 2 in the rear portion of the jaws 1 and 5, respectively, with relation to one another on opposite sides of the wrench, and the slide 9 is formed between the rear end portion of the member 2 and the member 1 with relation to the said slide 7 as shown.

The said 'handlemember 1 and shank 2 are provided with a longitudinal keyway 11 and a bevelkeyway 10 positioned with relation to one another to fit a longitudinal key- 3 and a bevel key 6, respectively. p

The said longitudinal key 3 and the bevel the objects are first, to

key 6 are secured together at their outer portions, anda raised member 13 is formed in theinner end of the said key 3, with a thumb hold 12 formed therein, and a slot 15 passes through the inner ends of the said key 3.to register with the thumb nut 14, the said thumb nut being secured into the head end of said handle member 1.

When it is desired to manipulate my wrench to tighten or loosen a bolt the jaws 1 and 5 are first opened by pushing the key 3 within its keyway 11, from the operator, by the thumb in the thumb hold 12; as the key 3 is being pushed the key6 is also made to follow the movement therewith, within its keyway 10. As the said key 6 is pushed from the operator it is caused to pass through the slide 10 with a wedging effect with relation to the key 3; therefore the member 2 is moved slidably thereby in the 6 with relation to the key 3 causes the memher 2 with the jaw 5 to close slidably down upon the jaw 4, in the slides '7, 8 and 9,

as hereinbefore described, and the jaws 4: and 5 now. being gripped around the nut or head ofthe bolt, the operator may pull the handle 1 of the wrench around the radial center of the bolt to loosen or tighten the cinch thereof.

It will be seen that when mywrench is pulled around a bolt while gripping the nut or head thereof, the wedging effect of the key 6 against the key 3 causes the jaws i and 5 to tighten together with relation to the pulling pressure exerted upon the handle 1 by the operator, and that when the operator releases the said pulling pressure the jaws are again free to be manipulated by the thumb hold 12, as described.

WVhen it is desired to use my wrench with the jaws 1 and 5 set into a stationary position the key 3 is clamped into the keyway 11 by screwing down the thumb screw 14 through the slot 15into said handle 1.

Having thus described my invention, what I claim is:

1. In a wrench, a handle provided with a stationary jaw, a movable jaw having a shank, said shank being slidably mounted on said handle and having a slot therein, a longitudinal key slidably mounted in said handle, and a wedge key on said longitudinal key slidable in said slot for moving said said handle and having a slot therein, a longitudinal key slidably mountedv in said handle, a wedge key on said longitudinal key slidable in said slot for moving said movable jaw toward'or away from said stationary jaw when said longitudinal key is moved longitudinally in said handle, and means for looking said slidable jaw in any position Within the range of its movement.

In testimonywhereof I hereunto aifix my signature.

IRXVIN P. KIMBALL. 

